Canova, L., and M. Marchesi. “Amphibian and Reptile Communities in Eleven Sites of Community Importance (SCI): Relations Between SCI Area, Heterogeneity and Richness”. Acta Herpetologica, vol. 2, no. 2, Nov. 2007, pp. 87-96, doi:10.13128/Acta_Herpetol-2213.